ONE WITH EACHOTHER IN CHRIST

I have often wondered why the body of Christ isn't further along as it should be. I have also often wondered why do we talk about, condemn, judge and gossip amongst ourselves. As I scrolled through facebook and even reflect on past experiences as a Christian, I have noticed alot of discord between Christians, which I myself have had my part in as well. I do not exclude myself. This is the reason for my writing this. As I search the word for an answer to this question, or rather a solution to this problem, I found this in
Mark 3:23-25 (Amplified Bible)
[And He summoned them to Him and said to them in parables (illustrations or comparisons put beside truths to explain them), How can Satan drive out Satan? And if a kingdom is divided and rebelling against itself, that kingdom cannot stand. And if a house is divided (split into factions and rebelling) against itself, that house will not be able to last.]
Because Jesus made this statement I realize that as long as we fight and bicker amongst ourselves, we are our own problem. Most of the time, I believe we misunderstand each other and do not give one another the benefit of the doubt. Do we really believe that Love COVERS a multitude of Sins or does that belief change when were offended and become angry. It clearly states in
Proverbs 15:18
"A hot temper starts fights: a calm cool spirit keeps the peace."
Also in James 1:19
[ Qualities Needed in Trials ] So then, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath;
So if we continue in this manner, HOW VICTORIOUS do you think we will be? Will what the Lord wants built in and through us be able to stand? If we continue to allow Satan to operate from his strongholds, that he has so obviously built in us, we will not see the full Promise of what our Father has in store for us. Keep the Working Faith and  continue to Cast down every imagination and every High thing that exalts itself against the knowledge of God.
SELAH